package com.itheima.controller;

import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * @author benben278
 * @create 2022-03-19 16:10
 */
//报表操作
@RestController
@RequestMapping("/report")
public class ReportController {
    @Autowired
    private MemberService memberService;
    @Autowired
    private SetmealService setmealService;
    @Autowired
    private ReportService reportService;
   //会员数量折线图数据
    @RequestMapping("/getMemberReport.do")
    public Result getMemberReport(){
        //使用模拟数据测试对象格式是否能够转为echarts所需的数据格式
        /** Map<String,Object> map=new HashMap<>();
        List<String> months=new ArrayList<>();
        months.add("2022.01");
        months.add("2022.02");
        months.add("2022.03");
        months.add("2022.04");
        months.add("2022.05");
        map.put("months",months);

        List<Integer> memberCount=new ArrayList<>();
        memberCount.add(100);
        memberCount.add(150);
        memberCount.add(180);
        memberCount.add(200);
        memberCount.add(300);
        map.put("memberCount",memberCount);*/


        Calendar calendar = Calendar.getInstance();//获得日历对象，默认时间就是当前时间
        //计算过去一年的12个月是哪些月份
        calendar.add(Calendar.MONTH,-12);//获得当前日期之前12个月的日期

        List<String> list = new ArrayList<>();
        for(int i=0;i<12;i++){
            calendar.add(Calendar.MONTH,1);//获得当前时间往后推一个月日期
            list.add(new SimpleDateFormat("yyyy.MM").format(calendar.getTime()));
        }

        Map<String,Object> map = new HashMap<>();
        map.put("months",list);

        List<Integer> memberCount = memberService.findMemberCountByMonth(list);
        map.put("memberCount",memberCount);

        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
    }

    //套餐预约占比统计饼状图
    @RequestMapping("/getSetmealReport.do")
    public Result getSetmealReport(){
        //使用模拟数据测试使用什么样的java对象转为饼状图所需的json数据格式
        /** Map<String,Object> map=new HashMap<>();
        List<String> setmealNames=new ArrayList<>();
        setmealNames.add("体检套餐");
        setmealNames.add("孕前体检套餐");
        map.put("setmealNames",setmealNames);

        List<Map<String,Object>> setmealCount=new ArrayList<>();
        Map map1=new HashMap();
        map1.put("name","体检套餐");
        map1.put("value",220);

        Map map2=new HashMap();
        map2.put("name","孕前体检套餐");
        map2.put("value",300);
        setmealCount.add(map1);
        setmealCount.add(map2);

        map.put("setmealCount",setmealCount);*/

        try{//网络请求，有可能因为网络原因报错。
            List<Map<String, Object>> list = setmealService.findSetmealCount();

            Map<String,Object> map = new HashMap<>();
            map.put("setmealCount",list);

            List<String> setmealNames = new ArrayList<>();
            for(Map<String,Object> m : list){
                String name = (String) m.get("name");//套餐名称
                setmealNames.add(name);
            }
            map.put("setmealNames",setmealNames);

            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map);
        }catch (Exception e){
            e.printStackTrace();//控制台打印异常信息
            return new Result(false, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }
    //获取运营数据
    @RequestMapping("/getBusinessReportData.do")
    public Result getBusinessReportData(){
        //使用模拟数据测试流程是否可以正常展示
        /**
         * reportDate:null,
         *                     todayNewMember :0,
         *                     totalMember :0,
         *                     thisWeekNewMember :0,
         *                     thisMonthNewMember :0,
         *                     todayOrderNumber :0,
         *                     todayVisitsNumber :0,
         *                     thisWeekOrderNumber :0,
         *                     thisWeekVisitsNumber :0,
         *                     thisMonthOrderNumber :0,
         *                     thisMonthVisitsNumber :0,
         *                     hotSetmeal :[
         *                         {name:'阳光爸妈升级肿瘤12项筛查（男女单人）体检套餐',setmeal_count:200,proportion:0.222},
         *                         {name:'阳光爸妈升级肿瘤12项筛查体检套餐',setmeal_count:200,proportion:0.222}

        Map<String,Object> data=new HashMap<>();
        data.put("reportDate","2020.3.20");
        data.put("todayNewMember",100);
        data.put("totalMember",20000);
        data.put("thisWeekNewMember",300);
        data.put("thisMonthNewMember",500);
        data.put("todayOrderNumber",150);
        data.put("todayVisitsNumber",100);
        data.put("thisWeekOrderNumber",300);
        data.put("thisWeekVisitsNumber",290);
        data.put("thisMonthOrderNumber",500);
        data.put("thisMonthVisitsNumber",400);

        List<Map<String,Object>> hotSetmeal=new ArrayList<>();
        Map<String,Object> map1=new HashMap<>();
        map1.put("name","阳光爸妈升级肿瘤12项筛查（男女单人）体检套餐");
        map1.put("setmeal_count",300);
        map1.put("proportion",0.5);

        Map<String,Object> map2=new HashMap<>();
        map2.put("name","阳光爸妈升级肿瘤12项筛查体检套餐");
        map2.put("setmeal_count",100);
        map2.put("proportion",0.2);

        hotSetmeal.add(map1);
        hotSetmeal.add(map2);

        data.put("hotSetmeal",hotSetmeal);
        return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,data); */

        try {
            Map<String, Object> result = reportService.getBusinessReport();
            return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,result);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(true,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
    @RequestMapping("/exportBusinessReport.do")//导出运营数据
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response){
        try{
            //远程调用报表服务获取报表数据
            Map<String, Object> result = reportService.getBusinessReport();

            //取出返回结果数据，准备将报表数据写入到Excel文件中
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //获得Excel模板文件绝对路径
            String temlateRealPath = request.getSession().getServletContext().getRealPath("template") +//获取template文件夹的绝对路径
                    File.separator + "report_template.xlsx";//File.separator为分隔符

            //基于提供的Excel模板文件，在内存中创建Excel表格对象
            XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(new File(temlateRealPath)));
            XSSFSheet sheet = workbook.getSheetAt(0);

            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);//报表日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;//代表第13行
            for(Map map : hotSetmeal){//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum ++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }

            //通过输出流进行文件下载（基于浏览器作为客户端进行下载）
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");//指定响应头的文件类型，代表excel文件类型
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");//指定以附件形式进行下载，需要弹出保存对话框，自行指定文件名和保存路径。
            workbook.write(out);

            out.flush();
            out.close();
            workbook.close();

            return null;
        }catch (Exception e){
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL,null);
        }
    }
    //导出运营数据到pdf并提供客户端下载
    @RequestMapping("/exportBusinessReport4PDF.do")
    public Result exportBusinessReport4PDF(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map<String, Object> result = reportService.getBusinessReport();

            //取出返回结果数据，准备将报表数据写入到PDF文件中
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //动态获取模板文件绝对磁盘路径
            String jrxmlPath =
                    request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business3.jrxml";
            String jasperPath =
                    request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business3.jasper";
            //编译模板
            JasperCompileManager.compileReportToFile(jrxmlPath, jasperPath);

            //填充数据---使用JavaBean数据源方式填充
            JasperPrint jasperPrint =
                    JasperFillManager.fillReport(jasperPath,result,
                            new JRBeanCollectionDataSource(hotSetmeal));

            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/pdf");
            response.setHeader("content-Disposition", "attachment;filename=report.pdf");

            //输出文件
            JasperExportManager.exportReportToPdfStream(jasperPrint,out);

            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
}
